HP 8920B - Page 324

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Chapter 5, Advanced Operations
Instrument Initialization
The Power-On Reset condition in the Test Set was specifically designed to
configure the instruments for manual testing of an FM radio. The Power-On Reset
default display screen is the RX TEST screen. Other operational characteristics
are also affected by the Power-On Reset as follows:
• The Power-up self-test diagnostics are performed.
• The Contents of the SAVE/RECALL registers are not affected.
• All pending operations are aborted.
• Measurement triggering is set to TRIG:MODE:SETT FULL;RETR REP
• All Enable registers are cleared: Service Request, Standard Event, Communicate,
Hardware #1, Hardware #2, Operation, Calibration, Call Processing and Questionable
Data/Signal.
• All Negative Transition Filter registers are initialized to all zeros: Communicate,
Hardware #1, Hardware #2, Operation, Calibration, Call Processing and Questionable
Data/Signal.
• All Positive Transition Filter registers are initialized to all ones: Communicate,
Hardware #1, Hardware #2, Operation, Calibration, Call Processing and Questionable
Data/Signal.
• Any previously received Operation Complete command (*OPC) is cleared.
• Any previously received Operation Complete query command (*OPC?) is cleared.
• Calibration data is not affected.
• The HP-IB interface is reset (any pending Service Request is cleared.)
• The contents of the RAM memory are unaffected.
• The Test Set’s display screen is in the UNLOCKED state.